Answer:
D, all of the above.
Explanation:
The right activity is important so that you don't hurt yourself doing something too strenuous.
Your need to know the exercise in order to not get hurt. Technique is very important to prevent injury.
Training in sensible locations means that:
If you hurt yourself, you can get help.
You have enough space to perform an exercise.
You have the right surroundings to perform an exercise (you wouldn't do a flip onto concrete).
Answer:
Spinach leaves would be helpful to replace damaged heart tissue because they can replace the damaged blood vessels with the ones that the leaves have.
Explanation:
According to this article, scientists can use spinach leaves to replace the damaged heart tissue by extracting the branching network of the leaves, which is the one that distributes water and nutrients in the leave, we can say that they have the same function as blood vessels in our body. With this network of thin vessels, which is very hard to reproduce with a 3D printer, scientists bathed the structure in human cells that can grow around it since they would be nourished by it. As a result, the tissue will grow from this. The goal is to replace damaged tissue using leaves, this has not been successfully done yet, but scientists have made improvements in this area.
Answer:Sometimes STDs or other sicknesses, and the risk of getting pregnant if you are female .
Explanation:
Before an emergency occurs
A.................and.................B
